Question: Return to the unit sales data used in this chapter. Apply the exponential-smoothing model to this data using values for of 0.15, 0.2, 0.25

Return to the unit sales data used in this chapter. Apply the exponential-smoothing model to this data using values for α of 0.15, 0.2, 0.25 and 0.3. Assess the accuracy of each choice of α and decide which you would use to forecast future values.

Consider the two sets of sales data in Table 9.16.

Apply the exponential-smoothing model to this data with a variety of values. What do you observe about the accuracy of the model over time in the two series?

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